package work.wk.Netty.NettyLearn;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

import java.util.logging.Logger;

/**
 * Created by wangkai43 on 2017/7/10.
 */
public class TimeClientHandler extends ChannelInboundHandlerAdapter {

    private static final Logger logger = Logger.getLogger(TimeClientHandler.class.getName());

    private final ByteBuf firstMessage;


    public TimeClientHandler() {
        byte[] req = "QUERY TIME ORDER".getBytes();
        firstMessage = Unpooled.buffer(req.length);
        firstMessage.writeBytes(req);

    }
    @Override
    public void channelActive(ChannelHandlerContext ctx){

        ctx.write(firstMessage);
        ctx.flush();
    }
    @Override
    public void channelRead(ChannelHandlerContext ctx,Object msg) throws Exception{
        ByteBuf byteBuf = (ByteBuf) msg;
        byte[] req = new byte[byteBuf.readableBytes()];
        byteBuf.readBytes(req);
        String body =  new String(req,"UTF-8");
        System.out.println("Now is : "+body);
        ctx.close();

    }
    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause){
        logger.warning("Unexpected Exception from downstream:"+cause.getMessage());
        ctx.close();
    }
}
